Operating instructions B-Series
Version 2.4, En Page 53 of 81 21-10-2005
8.4.8 Alignment
Check the alignment of the pump, motor and any reduction gearing.
Extra point(s) for attention with ATEX pumps.
P3.
P4.
P9.
P10.
S8.
S10.
Make sure that the pump (unit) is mechanically well shielded while operating.
Make sure that the pump is installed without any stresses. ∗
∗∗
∗
• Including coupling and electro-motor.
Ensure the good alignment of the pump and drive gear. ∗
∗∗
∗
Ensure the good fitting of the coupling on the pump shaft and drive gear. ∗
∗∗
∗
Regularly check the coupling and elastomers of the coupling.
Checking of alignment, damage to protective cover.
With an Ex-pump (unit) supplied by BBA Pompen these aspects are ensured for the application
indicated by the client with the associated indicated medium.
8.4.9 Protection
Fit the necessary protective covers around the couplings and turning parts.
Check whether pumps of which the temperature can become higher than 70°C have sufficient protection
against inadvertent contact.
Extra point(s) for attention with ATEX pumps.
K9.
P3.
S10.
Ensure the correct design and material choice of the protective cover.
• No dangerous dust accumulation may take place. A design open at the bottom is
preferred.
• The protective cover must fit widely around the coupling in case of dents, and to
make no contact with any dust layer on the inside of the protective cover.
For cat. 2: choice of material no more than 7,5% magnesium (see EN 13463-1,
8.2).
Make sure that the pump (unit) is mechanically well shielded while operating.
Checking of alignment, damage to protective cover.
8.5 starting
With a self-priming pump, during the venting of the suction line (“suction”), up to the time of the pump
pumping liquid, no counterpressure may exist so the pump can eject the drawn air.
8.5.1 On actually starting the pump unit go through the following check-list
•
Is the pump filled with liquid?
•
Has the pump been sufficiently heated? (if necessary)
•
Is there enough lubricant in the bearing support?
•
Is the sealing liquid present at the correct pressure and can it freely circulate?
•
Are the suction and discharge line valves fully open?
•
Start the pump briefly and check the direction of rotation of the motor.
•
Start the pump and check the suction of the liquid (vacuum).
•
Check the number of revolutions of the pump.
•
Check the pressure line and the shaft seal for any leaks.
•
Check the pump for good operation.
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